<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right" style="font-size: 16px">
      <el-breadcrumb-item :to="{ path: '/' }">
        <i class="el-icon-s-promotion">后台管理</i>
      </el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>新增SPU</el-breadcrumb-item>
      <el-breadcrumb-item>第3步：选择商品图片</el-breadcrumb-item>
    </el-breadcrumb>
    <el-divider></el-divider>
    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
      <el-form-item label="商品相册" prop="albumId">
        <el-select v-model="ruleForm.albumId" placeholder="请选择">
          <el-option v-for="item in albumListOptions" :key="item.id" :label="item.name" :value="item.id"></el-option>
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-button type="warning" @click="goBack('ruleForm')">上一步</el-button>
        <el-button type="primary" @click="next('ruleForm')">下一步</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
//这里可以导入其他文件（比如：组件，工具 js，第三方插件 js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';

export default {
  //import 引入的组件需要注入到对象中才能使用
  components: {},
  props: {},
  data() {
    //这里存放数据
    return {
      albumListOptions: [],
      ruleForm: {
        albumId: "",
        albumName: "",
      },
      rules: {
        albumId: [{ required: true, message: "请选择相册", trigger: "blur" }],
      },
    };
  },
  //计算属性 类似于 data 概念
  computed: {},
  //监控 data 中的数据变化
  watch: {},
  //方法集合
  methods: {
    loadAlbumList() {
      let url = "http://localhost:8088/albums";
      console.log("url = " + url);
      this.axios
        .create({
          headers: {
            Authorization: localStorage.getItem("jwt"),
          },
        })
        .get(url)
        .then((response) => {
          let responseBody = response.data;
          if (responseBody.state == 20000) {
            this.albumListOptions = responseBody.data;
          } else {
            this.$message.error(responseBody.message);
          }
        });
    },
    localRuleForm() {
      let localRuleFormString = localStorage.getItem("localRuleForm");
      if (!localRuleFormString) {
        this.$router.push("add-new-1");
      }
      let localRuleForm = JSON.parse(localRuleFormString);
      console.log(localRuleForm);
      if (!localRuleForm.categoryId) {
        this.$router.push("add-new-1");
      } else if (!localRuleForm.brandId) {
        this.$router.push("add-new-2");
      }

      this.ruleForm = localRuleForm;
    },
    goBack() {
      this.$router.push("add-new-2");
    },
    next(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          let url = "http://localhost:8088/albums/" + this.ruleForm.albumId;
          console.log("url = " + url);
          this.axios
            .create({ headers: { Authorization: localStorage.getItem("jwt") } })
            .get(url)
            .then((response) => {
              let responseBody = response.data;
              if (responseBody.state == 20000) {
                // 将所有数据存储到localStorage中
                let album = responseBody.data;
                this.ruleForm.albumId = album.id;
                this.ruleForm.albumName = album.name;
                localStorage.setItem("localRuleForm", JSON.stringify(this.ruleForm));
                // 跳转到下个视图
                this.$router.push("add-new-4");
              } else {
                this.$message.error(responseBody.message);
              }
            });
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    },
  },
  //生命周期 - 创建完成（可以访问当前 this 实例）
  created() {},
  //生命周期 - 挂载完成（可以访问 DOM 元素）
  mounted() {
    this.localRuleForm();
    this.loadAlbumList();
  },
  beforeCreate() {}, //生命周期 - 创建之前
  beforeMount() {}, //生命周期 - 挂载之前
  beforeUpdate() {}, //生命周期 - 更新之前
  updated() {}, //生命周期 - 更新之后
  beforeDestroy() {}, //生命周期 - 销毁之前
  destroyed() {}, //生命周期 - 销毁完成
  activated() {}, //如果页面有 keep-alive 缓存功能，这个函数会触发
};
</script>
<style scoped></style>
